717HP1274435422Years ago 349
The accumulation of organic impurities caused by decomposition products and the pollution of some ot...
709HP1805184932Years ago 378
The crystal surface is basically flat. It&#;s easy to take care of and clean up.Four look at the...
256HP1583123772Years ago 398
Strength refers to the performance of metal materials under static load (excessive plastic deformati...
632HP1955065912Years ago 383
Vent valve or water seal well shall be set at the outlet of flushing (thawing) drainage pipeline. Co...
256HP1583123772Years ago 723
Comprehensive classification ordinary steel A. carbon structural steel: (a) Q (b) Q (b); (c) Q( C)；...
570HP1556427002Years ago 490
The key to the development of non-woven stabilization technology is the preparation and application...
263HP1458166282Years ago 440
It is used to seal the construction joints, cold joints, pipe seepage joints and gaps between ground...
709HP1805184932Years ago 340
the more astringent it is. Even if you wear running shoes with nails SPC floor has special anti-ski...
717HP1274435422Years ago 370
Welding, high frequency preheating plus three torch argon arc welding, high frequency preheating plu...
409HP1847207642Years ago 400
Generally, the thickness of composite floor is about cm. From the height of the building, I don&...
